Synthesis of worm-like binary metallic active material by electroless deposition approach for high-performance supercapacitor

Tantawy, N.S.; Heakal, F. El-Taib; Ahmed, Saifuddin

doi:10.1016/j.est.2020.101625

Cited by 23 publications

(8 citation statements)

References 43 publications

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“…As the scan rate increases, the response current becomes more significant and the oxidation/ deoxidization peaks shift to higher/lower potential positions, which are ascribed to the fast interfacial rate kinetics and the internal resistance of the electrode. 49,50 The capacity behavior of Mn-CoP/NF arises from the redox reactions between the OHanions in the alkaline electrolyte and the transition-metal ions from the fabricated phosphide materials. More specifically, these redox reactions come from the redox pair reactions of Co 2+ /Co 3+ , Mn 2+ /Mn 3+ , and Mn 3+ /Mn 4+ , which could be expressed by the following equations: 23,51 For the Co system:…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Facile Electrodeposition of Mn-CoP Nanosheets on Ni Foam as High-Rate and Ultrastable Electrodes for Supercapacitors

Zhang

Wei

et al. 2021

ACS Appl. Energy Mater.

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As the combined merits of structures and compositions could have a great impact on electrodes, we synthesized manganese-doped cobalt phosphide nanosheets on Ni foam (Mn-CoP/NF) via a facile electrodeposition method. The synergistic effect between Mn and Co ions provides mixed valence states and adjusts the bandgap for accelerating the high redox reaction kinetics and improving the electron mobility and electrical conductivity. Meanwhile, the nanosheet structure provides rich electroactive sites and excellent structural stability for facilitating the electron transfer and resisting structural damage. As expected, the obtained Mn-CoP/NF electrode acquired a superior specific capacity (456 C g–1 at 0.5 A g–1), an excellent rate performance (77.4% capacity retention at 10 A g–1), and an excellent cyclability (89.0% capacity retention after 20,000 cycles). The Mn-CoP/NF//AC asymmetric supercapacitor (ASC) delivers a high energy density (14.82 W h kg–1 at 312 W kg–1) and long-term durability (87.7% capacity retention after 20,000 cycles). Moreover, two ASC devices can be used to light an LED for 6 min, demonstrating ASC’s promising practical applications.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Facile Electrodeposition of Mn-CoP Nanosheets on Ni Foam as High-Rate and Ultrastable Electrodes for Supercapacitors

Zhang

Wei

et al. 2021

ACS Appl. Energy Mater.

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“…amorphous MnO 2 nanowires grown on textiles [131], Ni-Co-P deposited on NF [132], and N/S-co-doped porous carbon [82]. Figure 8a shows the SEM image of a nitrogen-doped worm-like hierarchical porous carbon with graphitized porous carbon embossment (NWHC-GE), which was prepared by polymerization-induced colloid aggregation method followed by coordination-pyrolysis process [128].…”

Section: Caterpillar and Worm-like Structuresmentioning

confidence: 99%

Animal- and Human-Inspired Nanostructures as Supercapacitor Electrode Materials: A Review

Hussain

Lamiel

Sahoo³

et al. 2022

Nano-Micro Lett.

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Human civilization has been relentlessly inspired by the nurturing lessons; nature is teaching us. From birds to airplanes and bullet trains, nature gave us a lot of perspective in aiding the progress and development of countless industries, inventions, transportation, and many more. Not only that nature inspired us in such technological advances but also, nature stimulated the advancement of micro- and nanostructures. Nature-inspired nanoarchitectures have been considered a favorable structure in electrode materials for a wide range of applications. It offers various positive attributes, especially in energy storage applications, such as the formation of hierarchical two-dimensional and three-dimensional interconnected networked structures that benefit the electrodes in terms of high surface area, high porosity and rich surface textural features, and eventually, delivering high capacity and outstanding overall material stability. In this review, we comprehensively assessed and compiled the recent advances in various nature-inspired based on animal- and human-inspired nanostructures used for supercapacitors. This comprehensive review will help researchers to accommodate nature-inspired nanostructures in industrializing energy storage and many other applications.

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“…Upon increasing the scan rate, the peak current became more obvious, and its corresponding peak potential (E p ) shifted continuously towards more positive values. This conduct could be due to the insufficient time for the electroactive analyte in the electrolyte to access the electrode surface, creating unavoidable overpotential because of the increase in the internal diffusion resistance at high scan rates [39,40]. Such behavior gives further evidence that the oxidation process of DTZ in the tested PB micellar medium is irreversible in its nature [20].…”

Section: Influence Of Scan Ratementioning

confidence: 99%

“…The W element is serially connected with the charge transfer resistance (R ct ) and the two are in parallel with a constant phase element (CPE) that replaces the ideal double-layer capacitance (C dl ). The frequency-independent admittance (Q) of the CPE has an empirical exponent (0 � α � 1) utilized to express its deviation from the ideal behavior due to surface heterogeneity [39,40] and related to its impedance value (Z CPE ) by the expression:…”

Section: Optimization Of Nbs-mcpe Composition and Electrochemical Beh...mentioning

confidence: 99%

Potential Application of Carbon‐based Electrical Sensor for the Highly Sensitive Diltiazem HCl Quantification in its Pharmaceutical Products and Biological Samples

Mohamed

Heakal

2022

Electroanalysis

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Diltiazem (DTZ) hydrochloride, a calcium channel blocker compound, is a very well‐known drug used by many clinicians to treat important diseases playing a role in increased morbidity and mortality among adults worldwide, namely hypertension, cardiac arrhythmia, and ischemic heart disease (angina pectoris). These diseases are a common public health concern, implying that the construction of a specific, accurate, and simple sensor for DTZ determination is needed. Herein, an innovative, portable, and sensitive modified carbon paste electrode (MCPE) was seamlessly developed based on the affordable green compound N‐bromosuccinimide (NBS) as a sensing material and tricresyl phosphate as a solvent mediator for the voltammetric determination of DTZ. The proposed NBS‐MCPE exhibited an excellent electrocatalytic activity towards the oxidation of DTZ molecules in a phosphate buffer solution of pH 5.0 in presence of 20 μM sodium dodecyl sulfate to improve the developed sensor performance. The sensor was found to respond linearly to the DTZ drug over a wide concentration ranging from 1 μM to 300 μM with a low limit of detection. LSV and EIS measurements were also used to scrutinize our sensor, in addition to using scanning electron microscopy and energy dispersive X‐ray analysis techniques for its surface morphology inspection before and after soaking in the drug‐containing solution. The applicability of the proposed sensor for the rapid, sensitive, and selective determination of DTZ in pharmaceutical preparation and human urine samples was assessed and the obtained results were compared with that of the reported HPLC analytical method.

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Synthesis of worm-like binary metallic active material by electroless deposition approach for high-performance supercapacitor

Cited by 23 publications

References 43 publications

Facile Electrodeposition of Mn-CoP Nanosheets on Ni Foam as High-Rate and Ultrastable Electrodes for Supercapacitors

Facile Electrodeposition of Mn-CoP Nanosheets on Ni Foam as High-Rate and Ultrastable Electrodes for Supercapacitors

Animal- and Human-Inspired Nanostructures as Supercapacitor Electrode Materials: A Review

Potential Application of Carbon‐based Electrical Sensor for the Highly Sensitive Diltiazem HCl Quantification in its Pharmaceutical Products and Biological Samples

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